Tsukiji Market is the world's largest fish market. Every day, 1,700 tons of fish are sold to over 30,000 professional buyers in search of the finest fish from across the globe. Even computers cannot keep up with the amazingly fast pace of the auction - the most heated of which takes place over tuna. Complex human relationships and negotiations are on full display, but the deep trust between the players creates a surprising spirit of harmony. The market is run by a network of experienced professionals as complex as the neural pathways of the brain. Go behind the scenes at the fascinating Tsukiji Market.